Table 4.
Dosimetric parameters (median values and quartiles) of OARs in SFB, SDIBH, and PFB based on breast PTV volume <750 cm3 and >=750 cm3. Please note than PFB has the lowest mean values for heart, LV, LAD, and lung for breast PTV volume >=750 cm3
| Breast PTV volume <750 cm3 | SFB | SDIBH | PFB |
|---|---|---|---|
| Mean heart dose (Gy) | 1.65 (1.12–2.32) | 0.87 (0.71–1.21) | 0.90 (0.81–1.10) |
| Mean LV dose (Gy) | 2.93 (1.85–4.04) | 1.30 (1.01–1.70) | 1.32 (1.13–1.50) |
| Mean LAD dose (Gy) | 19.86 (7.85–25.1) | 5.97 (3.01–8.53) | 6.5 (3.58–9.16) |
| Mean lung dose (Gy) | 5.48 (3.93–6.52) | 5.06 (4.09–6.38) | 0.61 (0.48–0.97) |
| Breast PTV volume >=750 cm3 | |||
| Mean heart dose (Gy) | 2.59 (1.87–4.06) | 1.36 (0.97–1.62) | 1.07 (0.87–1.31) |
| Mean LV dose (Gy) | 3.61 (3.02–5.77) | 1.72 (1.40–2.11) | 1.2 (1.11–1.58) |
| Mean LAD dose (Gy) | 24.74 (10.22–36.75) | 7.05 (3.27–12.99) | 6.7 (4.51–9.93) |
| Mean lung dose (Gy) | 5.69 (4.77–7.08) | 5.7 (5.23–7.06) | 0.57 (0.36–0.68) |